Bronze is made using copper and tin. The ratio of tin and copper in a bronze pieces is 13 : 7. How much tin will be there in 100 kg of such a piece?

To solve this problem, we first need to understand the ratio given. The ratio of tin to copper is 13:7. This means that for every 20 parts of bronze (13 parts tin + 7 parts copper), 13 parts are tin.

Now, we need to find out how much tin is there in 100 kg of bronze.

Step 1: Find the total parts in the ratio. 13 (tin) + 7 (copper) = 20 parts

Step 2: Find out what 1 part is equivalent to. 100 kg (total bronze) ÷ 20 (total parts) = 5 kg

Step 3: Find out how much tin is there in 100 kg of bronze. 13 (parts of tin) × 5 kg (1 part) = 65 kg

So, there will be 65 kg of tin in 100 kg of bronze.